Hi Brendan, [auto build test WARNING on linus/master] [also build test WARNING on v4.13 next-20170907] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Brendan-Higgins/arm-npcm-add-basic-support-for-Nuvoton-BMCs/20170907-214055 config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:6:0, from include/linux/kernel.h:13, from include/linux/delay.h:21, from arch/arm/mach-npcm/platsmp.c:11: arch/arm/mach-npcm/platsmp.c: In function 'npcm7xx_smp_boot_secondary': >> include/linux/kern_levels.h:4:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'void *' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/linux/printk.h:301:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~ >> arch/arm/mach-npcm/platsmp.c:43:3: note: in expansion of macro 'pr_err' pr_err("could not iomap gcr at: 0x%llx\n", gcr_base); ^~~~~~ arch/arm/mach-npcm/platsmp.c: In function 'npcm7xx_smp_prepare_cpus': >> include/linux/kern_levels.h:4:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'void *' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/linux/printk.h:301:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~ arch/arm/mach-npcm/platsmp.c:74:3: note: in expansion of macro 'pr_err' pr_err("could not iomap scu at: 0x%llx\n", scu_base); ^~~~~~ arch/arm/mach-npcm/platsmp.c:80:1: warning: label 'out' defined but not used [-Wunused-label] out: ^~~ In file included from include/linux/io.h:25:0, from arch/arm/mach-npcm/platsmp.c:14: arch/arm/mach-npcm/platsmp.c: In function 'npcm7xx_smp_boot_secondary': >> arch/arm/include/asm/io.h:421:17: warning: 'gcr_base' may be used uninitialized in this function [-Wmaybe-uninitialized] #define iounmap iounmap ^~~~~~~ arch/arm/mach-npcm/platsmp.c:32:16: note: 'gcr_base' was declared here void __iomem *gcr_base; ^~~~~~~~ vim +/pr_err +43 arch/arm/mach-npcm/platsmp.c 27 28 static int npcm7xx_smp_boot_secondary(unsigned int cpu, 29 struct task_struct *idle) 30 { 31 struct device_node *gcr_np; 32 void __iomem *gcr_base; 33 int ret = 0; 34 35 gcr_np = of_find_compatible_node(NULL, NULL, "nuvoton,npcm750-gcr"); 36 if (!gcr_np) { 37 pr_err("no gcr device node\n"); 38 ret = -EFAULT; 39 goto out; 40 } 41 gcr_base = of_iomap(gcr_np, 0); 42 if (!gcr_base) { > 43 pr_err("could not iomap gcr at: 0x%llx\n", gcr_base); 44 ret = -EFAULT; 45 goto out; 46 } 47 48 /* give boot ROM kernel start address. */ 49 iowrite32(__pa_symbol(npcm7xx_secondary_startup), gcr_base + 50 NPCM7XX_SCRPAD_REG); 51 /* make sure npcm7xx_secondary_startup is seen by all observers. */ 52 smp_wmb(); 53 dsb_sev(); 54 /* make sure write buffer is drained */ 55 mb(); 56 57 out: 58 iounmap(gcr_base); 59 return ret; 60 } 61 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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